Quarterly report pursuant to Section 13 or 15(d)

Other (Narrative) (Details)

v3.5.0.2
Other (Narrative) (Details)
$ / d in Thousands
1 Months Ended 6 Months Ended
Jan. 31, 2016
$ / d
Jun. 30, 2016
contract
Operating Leases And Other Property Plant And Equipment [Line Items]    
Operating lease payable amount per day for placing rig on standby | $ / d 15  
Horizontal Drilling [Member]    
Operating Leases And Other Property Plant And Equipment [Line Items]    
Number of contracts | contract   2
Extended contract expiration terms   The contract terms of the Cactus 1 Rig and Cactus 2 Rig will end in July 2018 and August 2018, respectively.